Implement RFC 2: Initial integration of "GDAL SRS barn" work

This work mostly consists of:
- a C++ implementation of the ISO-19111:2018 / OGC Topic 2
  "Referencing by coordinates" classes to represent Datums,
  Coordinate systems, CRSs (Coordinate Reference Systems) and
  Coordinate Operations.
- methods to convert between this C++ modeling and WKT1, WKT2
  and PROJ string representations of those objects
- management and query of a SQLite3 database of CRS and Coordinate Operation definition
- a C API binding part of those capabilities

This is all-in-one squashed commit of the work of
https://github.com/OSGeo/proj.4/pull/1040

1 files changed, 63 insertions, 0 deletions

diff --git a/test/unit/test_util.cpp b/test/unit/test_util.cpp
new file mode 100644
index 00000000..67c7da52
--- /dev/null
+++ b/test/unit/test_util.cpp
@@ -0,0 +1,63 @@
+/******************************************************************************
+ *
+ * Project:  PROJ
+ * Purpose:  Test ISO19111:2018 implementation
+ * Author:   Even Rouault <even dot rouault at spatialys dot com>
+ *
+ ******************************************************************************
+ * Copyright (c) 2018, Even Rouault <even dot rouault at spatialys dot com>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ ****************************************************************************/
+
+#include "gtest_include.h"
+
+#include "proj/util.hpp"
+
+#include <iostream>
+
+using namespace osgeo::proj::util;
+
+// ---------------------------------------------------------------------------
+
+TEST(util, NameFactory) {
+    LocalNameNNPtr localname(NameFactory::createLocalName(nullptr, "foo"));
+    auto ns = localname->scope();
+    EXPECT_EQ(ns->isGlobal(), true);
+    EXPECT_EQ(ns->name()->toFullyQualifiedName()->toString(), "global");
+    EXPECT_EQ(localname->toFullyQualifiedName()->toString(), "foo");
+}
+
+// ---------------------------------------------------------------------------
+
+TEST(util, NameFactory2) {
+    PropertyMap map;
+    map.set("separator", "/");
+    NameSpaceNNPtr nsIn(NameFactory::createNameSpace(
+        NameFactory::createLocalName(nullptr, std::string("bar")), map));
+    LocalNameNNPtr localname(
+        NameFactory::createLocalName(nsIn, std::string("foo")));
+    auto ns = localname->scope();
+    EXPECT_EQ(ns->isGlobal(), false);
+    auto fullyqualifiedNS = ns->name()->toFullyQualifiedName();
+    EXPECT_EQ(fullyqualifiedNS->toString(), "bar");
+    EXPECT_EQ(fullyqualifiedNS->scope()->isGlobal(), true);
+    EXPECT_EQ(fullyqualifiedNS->scope()->name()->scope()->isGlobal(), true);
+    EXPECT_EQ(localname->toFullyQualifiedName()->toString(), "bar/foo");
+}